CN209408964U - Composite diamond cutter head and diamond saw blade - Google Patents
Composite diamond cutter head and diamond saw blade Download PDFInfo
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- CN209408964U CN209408964U CN201821694611.0U CN201821694611U CN209408964U CN 209408964 U CN209408964 U CN 209408964U CN 201821694611 U CN201821694611 U CN 201821694611U CN 209408964 U CN209408964 U CN 209408964U
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Abstract
The utility model discloses a kind of composite diamond cutter head and diamond saw blades, a kind of diamond saw blade, including disc matrix, described matrix is provided centrally with axis hole, several composite diamond cutter heads are evenly arranged with along matrix periphery, chip space is provided between each composite diamond cutter head, the composite diamond cutter head includes metal matrix and several diamond particles, one layer of tungsten layer is coated on the outside of each diamond particles, it is coated with one layer of nickel layer on the outside of the tungsten layer, each diamond particles that outermost layer is coated with nickel layer are embedded in metal matrix.Tungsten layer and nickel layer improve the interface cohesion between diamond pellet and metal matrix, so that the utilization rate of diamond particles increases in diamond saw blade, to increase its stock-removing efficiency and service life, it ensure that diamond pellet is firmly sintered in metal matrix, it is not easy to be detached from.
Description
Technical field
The utility model relates to a kind of composite diamond cutter head and diamond saw blades.
Background technique
Diamond saw blade is a kind of cutting tool, is widely used in the hard crisp material such as concrete, refractory material, stone material, ceramics
The processing of material, diamond saw blade mainly consist of two parts: matrix and cutter head.Wherein, matrix is the main support for bonding cutter head
Part, and cutter head is then the part for playing dissection in use, it is because of it why cutter head, which can play cutting,
In contain diamond particles, diamond particles are wrapped in cutter head by metal matrix, it in cutter head friction cuttings be processed object,
Moreover, cutter head can be constantly consumed in use.
The performance of saw blade not merely depends on the performance of the diamond selected and metal matrix itself, additionally depends on Buddha's warrior attendant
Interface cohesion between stone and metal matrix, since the wellability between diamond pellet and metallic bond is poor, so that golden
Belong to carcass it is lower to the bonding streng of diamond, this will make preparation saw blade in diamond pellet before non-wear-out failure just
It falls off in advance, to cause the reduction of stock-removing efficiency and the increase of use cost.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of composite diamond cutter head and diamond saw blade, diamond is improved
Interface cohesion between pellet and metal matrix, so that the utilization rate of diamond particles increases in diamond saw blade, to increase
Add its stock-removing efficiency and service life, finally obtains the diamond cutting tool of high efficiency, low cost.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
A kind of composite diamond cutter head, including metal matrix and several diamond particles, each diamond particles outside
It is coated with one layer of tungsten layer, is coated with one layer of nickel layer on the outside of the tungsten layer, each diamond particles that outermost layer is coated with nickel layer are embedded in metal
In carcass.
It is preferred that each diamond particles are uniform or are embedded in metal matrix at random.
Corresponding, a kind of preparation method of composite diamond cutter head includes the following steps:
Step 1 forms one layer of tungsten layer by the micro- steaming method plating tungsten powder of vacuum in diamond particle surfaces；Alternatively, by diamond
The mixed powder of pellet and metal tungsten powder carries out discharge treatment in SPS system, is plated on diamond by discharge plasma
Pellet surface prepares tungsten layer；
Step 2 prepares nickel layer on tungsten layer surface by chemical nickel plating or electronickelling；
Composite diamond pellet prepared by step 2 is uniformly mixed by step 3 with metal powder, graphite jig is packed into, in heat
It is sintered on pressure sintering machine.
It is preferred that carrying out processing of putting the first edge on a knife or a pair of scissors to cutter head using universal cutter grinder after diamond segment is welded on matrix.
A kind of diamond saw blade, including disc matrix, described matrix are provided centrally with axis hole, uniform along matrix periphery
Several composite diamond cutter heads are provided with, chip space, the composite diamond knife are provided between each composite diamond cutter head
Head includes metal matrix and several diamond particles, and one layer of tungsten layer, the tungsten layer outside are coated on the outside of each diamond particles
It is coated with one layer of nickel layer, each diamond particles that outermost layer is coated with nickel layer are embedded in metal matrix.
It is preferred that being provided with several heat dissipation bloops in described matrix.
It is preferred that each diamond particles are uniform or are embedded in metal matrix at random.
It is preferred that the chip space is in " V "-shape or in "U" shaped.
Corresponding, a kind of preparation method of diamond saw blade includes the following steps:
Step 01 uniformly processes small tooth along the circumferencial direction of matrix, after process finishing, cleans matrix；
Step 02 forms one layer of tungsten layer by the micro- steaming method plating tungsten powder of vacuum in diamond particle surfaces；Alternatively, by diamond
The mixed powder of pellet and metal tungsten powder carries out discharge treatment in SPS system, is plated on diamond by discharge plasma
Pellet surface prepares tungsten layer；
Step 03 prepares nickel layer on tungsten layer surface by chemical nickel plating or electronickelling；
The composite diamond pellet of preparation is uniformly mixed by step 04 with metal powder；
Mixture is packed into graphite jig by step 05, is sintered on pressing sintering；
Diamond segment is welded on matrix by step 06；
Step 07 carries out processing of putting the first edge on a knife or a pair of scissors to cutter head using universal cutter grinder.
The beneficial effects of the utility model are:
The first, it is successively coated with tungsten layer on the outside of diamond pellet and nickel layer forms composite deposite, is plated by the micro- steaming method of vacuum
After tungsten, barrel nickel plating can directly be electroplated, the processes such as desensibilization, activation can be saved, reduce production cost.
The second, tungsten layer and nickel layer improve the interface cohesion between diamond pellet and metal matrix, so that Buddha's warrior attendant
The utilization rate of diamond particles increases in stone saw piece, to increase its stock-removing efficiency and service life, ensure that diamond pellet jail
Solid sintering in metal matrix, it is not easy to be detached from.
In third, preparation process: the diamond pellet after plating is prepared into diamond after sintering together with metal matrix
Cutter head can also be solid-solution in knot during the sintering process while the coating of diamond surface is not only chemically combined with bonding agent
In mixture, chemical bonding occurs so that the interface cohesion between diamond and metal matrix improves, so that in saw blade
The utilization rate of diamond particles increases；It is solid-solution in bonding agent and increases its wearability, so that diamond segment makes
Increased with service life and stock-removing efficiency.This has a very important significance the performance for improving and improving diamond tool.
4th, the service life and stock-removing efficiency of diamond saw blade are improved, and sharpness is high.
5th, the coat of metal on the diamond pellet surface after discharge plasma plating can be burnt in diamond saw blade
Protection diamond avoids its erosion by bonding agent, especially iron-binding agent during knot, preferably to play diamond
It is superhard.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of diamond saw blade of the utility model；
Fig. 2 is a kind of production technological process of diamond saw blade of the utility model；
The mark meaning of attached drawing is as follows:
1: axis hole；2: heat dissipation bloop；3: diamond segment；4: chip space；5: matrix.
Specific embodiment
Technical solutions of the utility model are described in further detail with specific embodiment with reference to the accompanying drawing, so that
Those skilled in the art can better understand the utility model and can be practiced, but illustrated embodiment is not as to this reality
With novel restriction.
A kind of composite diamond cutter head, including metal matrix and several diamond particles, each diamond particles outside
It is coated with one layer of tungsten layer, is coated with one layer of nickel layer on the outside of the tungsten layer, each diamond particles that outermost layer is coated with nickel layer are embedded in metal
In carcass.Wherein, each diamond particles are uniform or are embedded in metal matrix at random.
Corresponding, preparation method includes the following steps:
Step 1 forms one layer of tungsten layer by the micro- steaming method plating tungsten powder of vacuum in diamond particle surfaces；Alternatively, by diamond
The mixed powder of pellet and metal tungsten powder is in SPS(discharge plasma sintering) discharge treatment is carried out in system, by electric discharge etc. from
Daughter is plated on diamond pellet surface and prepares tungsten layer；
Step 2 prepares nickel layer on tungsten layer surface by chemical nickel plating or electronickelling；
Composite diamond pellet prepared by step 2 is uniformly mixed by step 3 with metal powder, graphite jig is packed into, in heat
It is sintered on pressure sintering machine.Most common method for mixing is that mechanical mixing mechanically mixes metal powder and diamond pellet
With it is uniform, in mixed process, since metal powder density is high, diamond pellet density is lower, be easy to cause diamond local
Heap, so preferably with three-dimensional motion mode batch mixer.
Since diamond segment 3 needs just put the first edge on a knife or a pair of scissors after being fixed together with matrix 5, when diamond segment 3 welds
After connecing on matrix 5, processing of putting the first edge on a knife or a pair of scissors is carried out to cutter head using universal cutter grinder, the purpose put the first edge on a knife or a pair of scissors is by tool surfaces diamond
Exposure removes flour milling and side burr or protrusion, improves the concentricity of tool outer circle.
As shown in Figure 1, a kind of diamond saw blade, including disc matrix 5, described matrix 5 are provided centrally with axis hole 1, edge
5 periphery of matrix be evenly arranged with several composite diamond cutter heads 3,8 composite diamond cutter heads 3 are provided in Fig. 1, can root
According to specific application environment sets itself quantity.Wherein, it is provided with chip space 4 between each composite diamond cutter head 3, accelerates cutting
When chip removal, can be used " V " font chip space 4, be "U" shaped chip space 4 in Fig. 1.The composite diamond cutter head 3 includes gold
Belong to carcass and several diamond particles, one layer of tungsten layer is coated on the outside of each diamond particles, is coated with one layer on the outside of the tungsten layer
Nickel layer, each diamond particles that outermost layer is coated with nickel layer are embedded in metal matrix.
Each diamond particles are uniform or are embedded in metal matrix at random, several heat dissipations are preferably provided on matrix 5
Bloop 2 plays the role of noise reduction of radiating, while can guarantee the intensity of matrix 5, makes it in high-intensitive working condition
Under, the case where being not in damage.
The production of diamond saw blade is a systematic engineering of business, it should be opened from sources such as the quality of the preparation of powder and diamond
Beginning is picked up, while also to monitor the material of matrix, the performance of mechanical performance and machining accuracy, and selecting suitable raw material is to prepare
The premise for the diamond saw blade haveing excellent performance out.Diamond saw blade production process belongs to typical powder metallurgy process, needs to undergo
Mixing, compression moulding, sintering process, wherein the interface cohesion height between diamond and bonding agent is to influence diamond saw blade to cut
An important indicator of performance superiority and inferiority is cut, thus improves raising of the interface cohesion to saw blade performance between diamond and bonding agent
It has a very important significance.It is corresponding, as shown in Fig. 2, a kind of preparation method of diamond saw blade, includes the following steps:
Step 01 uniformly processes small tooth along the circumferencial direction of matrix 5, after process finishing, cleans matrix 5.This step master
Carry out the processing of matrix 5: matrix 5 is diamond saw blade for supporting cutting element-sawtooth main body, while being connection again
In the rigid element for realizing cutting in equipment.Matrix for cold-pressing sintering sawblade is generally manufactured with cold stamping, relative size essence
It is poor to spend.In order to play skeletal support to cutter head metal matrix, many small teeth are processed around matrix.It is needed before use pair
It carries out the pre-treatment such as cleaning.
Step 02 forms one layer of tungsten layer by the micro- steaming method plating tungsten powder of vacuum in diamond particle surfaces；Alternatively, by diamond
The mixed powder of pellet and metal tungsten powder carries out discharge treatment in SPS system, is plated on diamond by discharge plasma
Pellet surface prepares tungsten layer.
Step 03 prepares nickel layer on tungsten layer surface by chemical nickel plating or electronickelling.
The composite diamond pellet of preparation is uniformly mixed by step 04 with metal powder, and metal powder and diamond are mixed
Closing uniformly most common method for mixing is that mechanical mixing mechanically admixes metal powder and diamond uniformly.In mixed process
In, since metal powder density is high, diamond density is lower, the heap of diamond part is be easy to cause, so using three maintenance and operations
Flowing mode batch mixer.
Mixture is packed into graphite jig by step 05, is sintered on pressing sintering.Sintering is that diamond saw blade is raw
Most important one of critical process in production, the quality of sintering process directly affect the cutter head density of diamond saw blade, hardness with
Cutting ability.
Diamond segment 3 is welded on matrix 5 by step 06, and cutter head is welded on matrix using high-frequency welder, weldering
It connects technique and guarantees firm welding, it is small to the damage of cutter head and matrix.
Step 07 carries out processing of putting the first edge on a knife or a pair of scissors to cutter head using universal cutter grinder, and the purpose put the first edge on a knife or a pair of scissors is by tool surfaces Buddha's warrior attendant
Stone exposure removes flour milling and side burr or protrusion, improves the concentricity of tool outer circle.
Step 08 is detected in strict accordance with quality criteria requirements, including apparent size and inherent quality, up-to-standard
Product testing and correction dynamic balancing finally carry out surface polishing, spray painting, mark and are packed and stored.
With the extensive progress of infrastructure construction, it is desirable that the diamond saw blade of high-performance and low cost, but due to
Diamond belongs to nonmetallic, and the wetability between metallic bond is poor, causes to have between diamond and common metal or alloy
Very high interface energy would generally take surface to close to improve diamond and metal matrix binding force, people in diamond tool
Aurification, the method for roughing in surface improve method and improve diamond and carcass cast setting power.And the beneficial effects of the utility model are:
The first, it is successively coated with tungsten layer on the outside of diamond pellet and nickel layer forms composite deposite, is plated by the micro- steaming method of vacuum
After tungsten, barrel nickel plating can directly be electroplated, the processes such as desensibilization, activation can be saved, reduce production cost.
The second, tungsten layer and nickel layer improve the interface cohesion between diamond pellet and metal matrix, so that Buddha's warrior attendant
The utilization rate of diamond particles increases in stone saw piece, to increase its stock-removing efficiency and service life, ensure that diamond pellet jail
Solid sintering in metal matrix, it is not easy to be detached from.
In third, preparation process: the diamond pellet after plating is prepared into diamond after sintering together with metal matrix
Cutter head can also be solid-solution in knot during the sintering process while the coating of diamond surface is not only chemically combined with bonding agent
In mixture, chemical bonding occurs so that the interface cohesion between diamond and metal matrix improves, so that in saw blade
The utilization rate of diamond particles increases；It is solid-solution in bonding agent and increases its wearability, so that diamond segment makes
Increased with service life and stock-removing efficiency.This has a very important significance the performance for improving and improving diamond tool.
4th, the service life and stock-removing efficiency of diamond saw blade are improved, and sharpness is high.
5th, the coat of metal on the diamond pellet surface after discharge plasma plating can be burnt in diamond saw blade
Protection diamond avoids its erosion by bonding agent, especially iron-binding agent during knot, preferably to play diamond
It is superhard.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure made based on the specification and figures of the utility model perhaps equivalent process transformation or directly or indirectly fortune
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of composite diamond cutter head, including metal matrix and several diamond particles, which is characterized in that each diamond
It is coated with one layer of tungsten layer on the outside of particle, one layer of nickel layer is coated on the outside of the tungsten layer, outermost layer is coated with each diamond particles edge of nickel layer
In metal matrix.
2. a kind of composite diamond cutter head according to claim 1, which is characterized in that each diamond particles are uniformly or random
It is embedded in metal matrix.
3. a kind of diamond saw blade, including disc matrix (5), described matrix (5) are provided centrally with axis hole (1), feature exists
In being evenly arranged with several composite diamond cutter heads (3) along matrix (5) periphery, set between each composite diamond cutter head (3)
It is equipped with chip space (4), the composite diamond cutter head (3) includes metal matrix and several diamond particles, each diamond
It is coated with one layer of tungsten layer on the outside of particle, one layer of nickel layer is coated on the outside of the tungsten layer, outermost layer is coated with each diamond particles edge of nickel layer
In metal matrix.
4. a kind of diamond saw blade according to claim 3, which is characterized in that described matrix is provided with several on (5)
It radiates bloop (2).
5. a kind of diamond saw blade according to claim 3, which is characterized in that each diamond particles are uniform or inlay at random
In metal matrix.
6. a kind of diamond saw blade according to claim 3, which is characterized in that the chip space (4) is in " V "-shape.
7. a kind of diamond saw blade according to claim 3, which is characterized in that the chip space (4) is in "U" shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694611.0U CN209408964U (en) | 2018-10-19 | 2018-10-19 | Composite diamond cutter head and diamond saw blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694611.0U CN209408964U (en) | 2018-10-19 | 2018-10-19 | Composite diamond cutter head and diamond saw blade |
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| CN209408964U true CN209408964U (en) | 2019-09-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919880A (en) * | 2019-11-21 | 2020-03-27 | 江苏华昌工具制造有限公司 | Tooth-protecting porous laser welding sheet and preparation process thereof |
| CN110948706A (en) * | 2019-11-21 | 2020-04-03 | 江苏华昌工具制造有限公司 | Tooth-protecting diamond saw blade and laser welding preparation process thereof |
-
2018
- 2018-10-19 CN CN201821694611.0U patent/CN209408964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919880A (en) * | 2019-11-21 | 2020-03-27 | 江苏华昌工具制造有限公司 | Tooth-protecting porous laser welding sheet and preparation process thereof |
| CN110948706A (en) * | 2019-11-21 | 2020-04-03 | 江苏华昌工具制造有限公司 | Tooth-protecting diamond saw blade and laser welding preparation process thereof |
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